Robert Mugabe and Morgan Tsvangirai

Robert Mugabe and Morgan Tsvangirai

Jekesai Njikizana/AFP/Getty Images

Zimbabwe's President Robert Mugabe, right, and Prime Minister Morgan Tsvangirai have ruled Zimbabwe in a coalition government since 2009 when the 15-nation Southern African Development Community compelled the leaders to form a government together to end a decade-long political dispute and economic recession.